Jae Sung An defeated Yuichi Sugita 5-7 6-4 7-6 in the Japan F3 final on hard. Jae Sung An extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-11-08 | Thailand F4 | QF | hard | Yuichi Sugita | 6-2 6-3 |
| 2009-10-12 | Japan F8 | R32 | hard | Jae Sung An | 6-4 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.